This glitch only occurs at coordinates far from the center of the world; at X&Z plus or minus 1000000. When landmarks are placed and activated the laser that runs between them becomes extremely glitched as well as becomes visible through walls as it flails around uncontrollably. This appears to have no effect on the function of the landmarks themselves. Subsequently when a quarry is placed, the guidelines for the frame, as well as the laser that clears the area behave similarly. I have noted similar graphical glitching for the oil wells upon the flowing oil interacting with the surrounding environment. I have extensively tested for the cause of this and have determined that no other mods affect this behavior, it is exclusively present through BC however I was initially playing Tekkit2 version 1.2.3 when I noticed this so I deleted all other mods to test and the issue was still present.

Currently running BC version 7.99.24.8 and Forge version 14.23.5.2860.
Thank you.

I think this is a floating point inaccuracy bug - similar to the ones we used to see in older versions of minecraft. This is unlikely to be fixed in BC for minecraft 1.12